Kizugawa City is one of the few municipalities in Japan with a growing population. In a population estimate released by the Japan Policy Council, Kizugawa City is the only municipality in Kyoto Prefecture predicted to have a positive population growth rate by 2040.

As of June 1, 2014, the area the city occupies had an estimated population of 72,407, with 27,135 households and a population density of 850 persons per km². The total area of the city is 85.12 km².

Kizugawa City Community Bus (木津川市コミュニティバス) and Nara Kotsu Bus (奈良交通バス) run in Kizugawa City.

All Kizugawa City Community Bus buses, excluding Tono Line (当尾線), have a fixed fare. Kizugawa City Community Bus 1-Day Tickets are available at the city hall, branch offices, and on Kizugawa City Community Buses. They are useful for residents and visitors for traveling to several locations in the city.